What constellation is difficult?

In 12 constellation, which constellation is the most difficult to understand/? ?

The man named cancer is uncertain and elusive. Sometimes gentle and considerate, sometimes cold and suffocating, sometimes kind and kind, sometimes harsh and unreasonable. However, as long as you are a cancer man, you must have a gentle and sensitive heart. Cancer men rarely let people know too much about him at once, and rarely show their emotions or feelings. Therefore, it is not easy to really understand a cancer man. )

The second Gemini (usually versatile, can handle many things at the same time, and some will show two or more obvious personalities, which are often elusive)

The third is Aquarius (an elusive constellation, which positively proves super powers and supernatural phenomena, has good popularity and eloquence, and is loyal to one's beliefs).